Not exact matches
By using a method like Pick Up, Put Down
neurons link together into circuits controlling learning, memory, and social behavior, according to Science News, and in turn, the method affects where
neurons end up and the connections they
form.
His or her newly -
formed neurons and connections are the reason your baby - to - be may be able to discern your voice from others
by now.
«Our work suggests that the neural pathology of autism manifests in the earliest cortical circuits,
formed by a cell type called subplate
neurons,» said UMD Biology Professor and senior study author Patrick Kanold.
A unique
form of carbon dating, made possible
by the Cold War, suggests that new
neurons rarely survive in the human olfactory bulb after birth
Allen previously discovered a class of proteins secreted
by astrocytes that help
neurons form active connections, known as synapses.
CREB helps
form memories not
by making all
neurons stronger but
by turning up the contrast between the haves and the have - nots.
It was believed that
neurons responded to the size of the image
formed on the eye (retinal image); however, size constancy can not be achieved
by such cells alone.
What I find most interesting is the idea that the embryonic tissue that goes on to
form limb and the motor
neurons is regulated
by coordinated molecular mechanisms — under the guidance of a genetic program that has been conserved over the course of evolution.
Belgian researchers have identified a new strategy for treating an inherited
form of dementia after attempting to turn stem cells derived from patients into the
neurons most affected
by the disease.
Neurons responding to similar stimulus orientations also clustered
forming a map with a pinwheel pattern that was discovered later
by other scientists.
When the brain
forms memories or learns a new task, it encodes the new information
by tuning connections between
neurons.
In a closing set of experiments, the researchers examined
neurons obtained from mice with the most common inherited
form of ALS, one caused
by mutations in a gene called SOD1.
The protein seems to be involved in
forming or reconfiguring connections between
neurons, possibly
by clearing away old debris or inefficient connections to make way for new connections.
Neuroscientists believe that memory
forms when
neurons in these key brain structures are simultaneously activated
by glutamate and an electrical pulse, a result of everyday sensory experience.
While it appears the seed of the father - child bond is planted
by supplemental
neurons in a new dad, it seems a child, on the other hand, may be born with a brain that expects this bond to
form in the first place.
But these new
neurons helped to
form long - term memories and bonds, as the mouse fathers easily recognized their offspring
by smell even after they had been separated for a long period of time.
In vertebrates, the axons of many
neurons are sheathed in myelin, which is
formed by either of two types of glial cells: Schwann cells ensheathing peripheral
neurons and oligodendrocytes insulating those of the central nervous system.
«
By adapting an automated process to
neurons, we were able to go through 800 genes to find one needed for
forming synapses — connections — among those cells.»
Astrocytes also
form their own long - distance communication networks
by «talking» via waves of calcium ions, and, like
neurons, they can receive and release neurotransmitters.
These
form individual connections influenced
by the number of times each
neuron communicates with another
neuron.
Neuroscientists have long believed that scar tissue
formed by glial cells — the cells that surround
neurons in the central nervous system — impedes damaged nerve cells from regrowing after a brain or spinal cord injury.
When a new granule cell
neuron is made in the dentate gyrus, it needs to get «wired in,»
by forming synapses, or connections, in order to contribute to circuit function.
Now, with publication of a study
by investigators at the Cedars - Sinai Board of Governors Regenerative Medicine Institute, ALS researchers know the effects of the attack are worsened, at least in part,
by the aging and failure of support cells called astrocytes, which normally provide nutrients, housekeeping, structure and other
forms of assistance for
neurons.
«Since cholesterol is required
by neurons to
form synapses (connections) with other cells, this decrease in cholesterol could affect how nerves function for appetite regulation, behavior, memory and even pain and motor activity,» says Dr. Kahn, who is also Mary K. Iacocca Professor of Medicine at Harvard Medical School.
The first genetically encoded optical tool that can precisely control brain cells (
neurons)
by the millisecond, optogenetics allows for light - induced control of neuronal activity, helping researchers understand how
neurons form circuits that control behavior.
Alzheimer's disease, the most common
form of dementia, is characterized
by the accumulation of plaques (composed of amyloid - beta protein) and fibrous tangles (composed of abnormal tau) in brain cells called
neurons.
In motor
neuron disease, it was caused
by mutations in the FUS protein itself which meant it was no longer able to change
form.
When the researchers modeled the effects in mice, they found it strengthened the connections between
neurons that make learning possible — what is known as synaptic plasticity —
by increasing the action of a cell receptor critical to
forming memories.
An intriguing clue to this selectivity is provided
by Setola et al., who identify a truncated
form of SMN1 that arises from an alternative spliced SMN1 transcript that is preferentially expressed in the axonal projections of developing motor
neurons.
Spinal muscular atrophy (SMA) is a juvenile autosomal recessive
form of motor
neuron disease caused
by progressive degeneration of motor
neurons in the spinal cord.
Mutations in tau cause neurodegeneration in human brains, and tau modified
by the addition of phosphate groups (p - tau)
forms aggregates and damages
neurons.
Katrin Michel is a Postdoctoral Researcher at MIT and is fascinated
by the question of how genes and proteins coordinate billions of
neurons to
form the functional networks of the human brain.
Removal of an ear
by amputation of a foreleg, however, results in
neurons crossing over to
form new connections with the existing auditory
neurons on the opposite side of the body (Figure 1B), leading, in turn, to recovery of neuronal function.
The most severe
form of SMA is Type 1, a lethal genetic disorder characterized
by motor
neuron loss and associated muscle deterioration, which results in mortality or the need for permanent ventilation support before the age of two for greater than 90 percent of patients.
We postulated that UNC - 7S might rescue forward locomotion
by providing a gap junction subunit in AVB hemichannels that
form channels with B class motor
neurons.
Alzheimer's Disease is the most common
form of dementia in the elderly, and is caused primarily
by a loss of
neurons in the brain's memory centers and networks.
Furthermore, the synapses between these
neurons, also helped
by choline, continue
forming until 4 years of age!
«The fasting is a mild energetic stress and the
neurons respond adaptively
by increasing mitochondria which helps them produce more energy and...
by increasing the number of mitochondria and
neurons it can increase the ability of the
neurons to
form and maintain synapses and thereby increase learning and memory ability.